Overview

overview

10

Static

static

Ag Fee JUN...AB.exe

windows7_x64

10

Ag Fee JUN...AB.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    169s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21/05/2022, 12:05

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General

  • Target
    Ag Fee JUNE20_RevAB.exe
  • Size 960KB
  • Sample220521-n87v4aaaek
  • SHA256 6ba46f615852e53354ac061f1407663d440d4edc35578093055377c9cf784f84
  • MD5 SHA1 SHA512
Score
10/10
massloggerspywarestealer

Malware Config

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    stealerspywaremasslogger
  • MassLogger Main Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ag Fee JUNE20_RevAB.exe
    "C:\Users\Admin\AppData\Local\Temp\Ag Fee JUNE20_RevAB.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1620
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VFJqVfJDS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E5E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4752
    • C:\Users\Admin\AppData\Local\Temp\Ag Fee JUNE20_RevAB.exe
      "{path}"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3964
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 772
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:4504

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        Ag Fee JUNE20_RevAB.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Ag Fee JUNE20_RevAB.exe.log
        • Size 408B
        • SHA256 c67092561e4b1472672374c3439004e2bc0191d9a901cde2b8b69a2d34dc6297
        • MD5 SHA1 SHA512
        Submit Download

        tmp4E5E.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\tmp4E5E.tmp
        • Size 1KB
        • SHA256 b0eafd5fbb9651dc2b4bb68a4b6c94dc7efd52bae76328a6a7197d9f11b1a32f
        • MD5 SHA1 SHA512
        Submit Download

        memory/1620-130-0x00000000752F0000-0x00000000758A1000-memory.dmp
        Download

        memory/3964-134-0x0000000000400000-0x00000000004A8000-memory.dmp
        Download

        memory/3964-137-0x00000000752F0000-0x00000000758A1000-memory.dmp
        Download